Mesofacts and the Census of Marine Life

Remember mesofacts (introductory essay here)? Well, yesterday the Census of Marine Life released a treasure trove of data on new sea species, with over a thousand new species confirmed (and lots more sure to follow). In addition to lots of new knowledge, included within its census are a few mesofacts that require updating:

… an ancient shrimp thought to have become extinct 50 million years ago…

Science fiction had long imagined “anaerobic” creatures that could live without oxygen. A team sampling the deep Mediterranean found three such species. These creatures, each the size of a pin head, live their entire lives hidden in sediment on the seafloor without oxygen.